Thorax!

Question 1

The trachea bifurcates at approximately the level of which vertebrae?

Answer 1

T5

Question 2

The large indention on the medial surface of the left lung is termed what?

Answer 2

cardiac notch

Question 3

The functional unit of the respiratory system is what?

Answer 3

alveoli

Question 4

Where is the thymus gland located?

Answer 4

superior portion of mediastinum, just behind the manubrium

Question 5

Which heart valve is located between the left atrium and the left ventricle?

Answer 5

bicuspid or mitral valve

Question 6

Which vessel supplies blood to the left atrium and ventricle?

Answer 6

left anterior descending artery

Question 7

The thoracic duct empties into what?

Answer 7

left subclavian vein

Question 8

Which muscles are located between the tubercle and angle of the ribs and help to elevate the ribs during respiration?

Answer 8

levatores costarum muscles

Question 9

Which tissue layer of the breast contains the excretory ducts?

Answer 9

glandular tissue

Question 10

which ribs are considered floating ribs?

Answer 10

11 and 12

Question 11

Where is the lingula located within the lungs?

Answer 11

inferoanterior surface of cardiac notch

Question 12

In a chest radiograph, what structure forms the right border of the heart?

Answer 12

right antrum

Question 13

What is the basic unit of pulmonary structure called?

Answer 13

secondary pulmonary lobule

Question 14

Where is the foramen ovale located?

Answer 14

interarterial septum

Question 15

The sinoatrial (SA) node is located where?

Answer 15

Under the epicardium in the superior aspect of the right antrum

Question 16

Which vessel is typically the most superior of the pulmonary vessels?

Answer 16

left pulmonary artery

Question 17

Which vessel is typically the most superior of the pulmonary vessels

Answer 17

left pulmonary vessels

Question 18

Which structure closely covers the outer surface of the lung?

Answer 18

visceral pleura

Question 19

Which chamber of the heart receives the pulmonary veins?

Answer 19

left atrium

Question 20

Which structure attaches the diaphragm to the lumbar spine?

Answer 20

crura

Question 21

Which structure is considered the pacemaker of the heart?

Answer 21

SA node

Question 22

Which vessel does the circumflex artery branch from?

Answer 22

left coronary artery

Question 23

Which vessel carries the majority of venous blood return from the heart muscle?

Answer 23

coronary sinus